<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="分类名称" prop="typeName">
        <el-input
          v-model="queryParams.typeName"
          placeholder="请输入分类名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['blog:type:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['blog:type:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['blog:type:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['blog:type:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table border v-loading="loading" :data="typeList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="分类名称" align="center" prop="typeName" />
      <el-table-column label="分类图像" align="center" prop="typePicUrl">
        <template slot-scope="scope">
          <el-image
            style="width: 28px;height: 28px; border-radius: 50%; margin-right: 10px"
            :src="scope.row.typePicUrl"
            lazy
            :preview-src-list="[scope.row.typePicUrl]">
            <div slot="error" class="image-slot">
              <i class="el-icon-collection"></i>
            </div>
          </el-image>
        </template>
      </el-table-column>
      <el-table-column label="博客数量" align="center" prop="blogNum" />
      <el-table-column label="创建者" align="center" prop="createBy" />
      <el-table-column label="创建时间" align="center" prop="createTime">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d} {h}:{i}:{s}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['blog:type:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['blog:type:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改分类信息对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="700px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类名称" prop="typeName">
          <el-input v-model="form.typeName" placeholder="请输入分类名称" />
        </el-form-item>
        <el-row>
          <el-col :span="20">
            <el-form-item label="分类图像" prop="typePicUrl">
              <el-input :maxlength="50" v-model="form.typePicUrl" placeholder="分类图像"></el-input>
              <el-image
                style="width: 28px;height: 28px; border-radius: 50%; margin-right: 10px"
                :src="form.typePicUrl"
                lazy
                :preview-src-list="[form.typePicUrl]">
                <div slot="error" class="image-slot">
                  <i class="el-icon-collection"></i>
                </div>
              </el-image>
            </el-form-item>
          </el-col>
          <el-col :span="4">
            <el-button
              type="primary"
              plain
              icon="el-icon-plus"
              @click="handleImage"
              v-hasPermi="['system:oss:upload']"
            >上传图片
            </el-button>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button :loading="buttonLoading" type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

    <!-- 添加或修改OSS对象存储对话框 -->
    <el-dialog :title="imageTitle" :visible.sync="imageOpen" width="500px" append-to-body>
      <el-form ref="form" :model="imageForm" :rules="imageRules" label-width="80px">
        <el-form-item label="文件名">
          <imageUpload v-model="imageForm.file" :limit="1" @input="getImageUrl"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button :loading="imageButtonLoading" type="primary" @click="submitImageForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listType, getType, delType, addType, updateType } from "@/api/blog/type";

export default {
  name: "Type",
  data() {
    return {
      // 按钮loading
      buttonLoading: false,
      // 遮罩层
      loading: true,
      // 默认排序
      defaultSort: {prop: 'createTime', order: 'descending'},
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 分类信息表格数据
      typeList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        typeName: undefined
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        typeName: [
          { required: true, message: "分类名称不能为空", trigger: "blur" }
        ]
      },
      // 按钮loading
      imageButtonLoading: false,
      // 弹出层标题
      imageTitle: "",
      // 是否显示弹出层
      imageOpen: false,
      // 表单参数
      imageForm: {},
      // 表单校验
      imageRules: {
        file: [
          { required: true, message: "文件不能为空", trigger: "blur" }
        ]
      }
    };
  },
  created() {
    this.queryParams.orderByColumn = this.defaultSort.prop;
    this.queryParams.isAsc = this.defaultSort.order;
    this.getList();
  },
  methods: {
    /** 查询分类信息列表 */
    getList() {
      this.loading = true;
      listType(this.queryParams).then(response => {
        this.typeList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        typeId: undefined,
        createBy: undefined,
        createTime: undefined,
        updateBy: undefined,
        updateTime: undefined,
        typeName: undefined,
        typePic: undefined
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.typeId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加分类信息";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.loading = true;
      this.reset();
      const typeId = row.typeId || this.ids
      getType(typeId).then(response => {
        this.loading = false;
        this.form = response.data;
        this.open = true;
        this.title = "修改分类信息";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          this.buttonLoading = true;
          if (this.form.typeId != null) {
            updateType(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            }).finally(() => {
              this.buttonLoading = false;
            });
          } else {
            addType(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            }).finally(() => {
              this.buttonLoading = false;
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const typeIds = row.typeId || this.ids;
      this.$modal.confirm('是否确认删除分类信息编号为"' + typeIds + '"的数据项？').then(() => {
        this.loading = true;
        return delType(typeIds);
      }).then(() => {
        this.loading = false;
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      }).finally(() => {
        this.loading = false;
      });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('blog/type/export', {
        ...this.queryParams
      }, `type_${new Date().getTime()}.xlsx`)
    },
    // 表单重置
    resetImage() {
      this.imageForm = {
        file: undefined,
      };
      this.resetForm("imageForm");
    },
    /** 图片按钮操作 */
    handleImage() {
      this.resetImage();
      this.imageOpen = true;
      this.imageTitle = "上传图片";
    },
    /** 提交按钮 */
    submitImageForm() {
      this.imageOpen = false;
    },
    getImageUrl(fileList){
      if(fileList.length == 1){
        this.form.typePicOssId = fileList[0].ossId;
        this.form.typePicUrl = fileList[0].url;
        this.form.typePicName = fileList[0].name;
      }else{
        this.form.typePicOssId = "";
        this.form.typePicUrl = "";
        this.form.typePicName = "";
      }
    }
  }
};
</script>
